OPC Write

Library

Description

The OPC Write block writes data to one or more items on an OPC
server. The write operation takes place synchronously or asynchronously.

Each element of the input vector is written to the corresponding
item in the item ID list defined for the OPC Write block.

Note
You must have an OPC Configuration block in your model to use
the OPC Write block. You cannot open the OPC Write dialog without
first including an OPC Configuration block in the model.

Dialog Box

Import from Workspace

Allows you to import settings for the OPC Write block from a dagroup object
in the base workspace. The client, item IDs, and sample time are updated
based on the properties of the imported group.

Client

Defines the OPC client associated with this block. You can add
clients to the list using Configure OPC Clients.
For more information, see Use the OPC Client Manager.

ItemIDs

Shows the items to be written to the specified server. You can
add items to the list using Add Items, or delete
items using Delete. You can reorder the items
in the list using Move Up or Move
Down. Each element of the input port is written to the
corresponding item in the list.

Write mode

Defines the write mode for this block. Available options are Asynchronous and Synchronous.
Synchronous writes have slightly more overhead than asynchronous writes,
but they are generally more reliable than asynchronous writes.

Sample time

Defines the sample time for the block. Data is written to the
server at the specified sample time. You can specify 0 for
continuous mode, or -1 to inherit the sample time
of the block connected to the input of the OPC Write block.